Stock boost numbers for an LB7

[Whitetail Addict]

Does anybody know stock boost numbers for an LB7? I can only get around 15psi max out of mine. I expected it to be around 20psi.
BTW If I posted this in the wrong section feel free to move it.

 

[NelsonDiesel]

ppe's boost valve says stock maxes at 18 - 20.

Unfortunatly i do not have gauges so ic an't tell you what i am getting :-(

 

[malibu795]

i got 17-19 psi when it was stock

 

[JOHNBOY]

Depends on each truck. Most of the time completely stock is good for just a hair under 20psi.

 

[mplteddy]

Mild tuning and a PPE boost valve, mine peaks at 26 psi on wide open throttle shift...

 

[Whitetail Addict]

Thanks guys. I think I am within normal range then, I believe I can get about 17 out of it. Is the ppe boost valve worth it? I also seen Kennedy has one, and is one better than the other? I know some aftermarket wastegates are available too, what would be the advantages of these over the boost valve?. Also is there any other ways to improve boost, that I am missing, besides a new turbo?

 

[2500HeavyDuty]

i got 25 stock and can creep past 30 with a big tune:cool2:

 

[2500HeavyDuty]

as for making more boost, im am going to try adding an air pressure regulator in place of my waste gate. see how that works out

 

[Noreaster]

Best I got stock was 20, I can hit 28 with the VA on. I took the wastegate hose & routed it to the SD manifold for its getting the reading post IC. Worth about 3 extra lbs.

 

[bullfrogjohnson]

as for making more boost, im am going to try adding an air pressure regulator in place of my waste gate. see how that works out

If you go much past 30psi on a stocker it wont live long. I believe that anything past 30psi you are overspeeding and just super heating the air on a stocker, its just out of its efficiency range

 

[2500HeavyDuty]

I thought it was anything over 32 psi?

 

[mytmousemalibu]

as for making more boost, im am going to try adding an air pressure regulator in place of my waste gate. see how that works out

I did just that! runnin around 30-32psi ! Responce seems to be a little faster too! Pics of in-cab control, lines and boost/drive psi gauges